Thunderstorms and Heavy Rain in the Mid-South; Heat Continues in the Southeast and Southwest

Severe thunderstorms and heavy rain are expected across portions of the mid-Mississippi Valley into the Ohio Valley and portions of Arizona. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that, when combined with oppressive dew points, little-to-no relief from the scorching daytime highs will be available. Read More >

Current conditions at

Montague Siskiyou County Airport (KSIY)

Lat: 41.77375°NLon: 122.46817°WElev: 2644.0ft.

Clear

90°F

32°C

Humidity 18%
Wind Speed N 13 MPH
Barometer 30.02 in (1016.59 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Heat Index86°F (30°C)
Last update 18 Aug 07:00 PM PDT
Extended Forecast for

Yreka CA

  • Tonight

    Tonight: Mostly clear, with a low around 60. North northeast wind 5 to 13 mph becoming south in the evening. Winds could gust as high as 20 mph.

    Low: 60 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 95. Calm wind becoming east 5 to 7 mph in the afternoon.

    High: 95 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 61. Northwest wind 5 to 7 mph becoming calm  in the evening.

    Low: 61 °F

    Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 96. Calm wind becoming south southeast around 5 mph in the afternoon.

    High: 96 °F

    Hot

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 62. South southwest wind 5 to 8 mph becoming light and variable  in the evening. Winds could gust as high as 20 mph.

    Low: 62 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 91.

    High: 91 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 87.

    High: 87 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 54.

    Low: 54 °F

    Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 60. North northeast wind 5 to 13 mph becoming south in the evening. Winds could gust as high as 20 mph.
Wednesday
Sunny, with a high near 95. Calm wind becoming east 5 to 7 mph in the afternoon.
Wednesday Night
Clear, with a low around 61. Northwest wind 5 to 7 mph becoming calm in the evening.
Thursday
Sunny and hot, with a high near 96. Calm wind becoming south southeast around 5 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 62. South southwest wind 5 to 8 mph becoming light and variable in the evening. Winds could gust as high as 20 mph.
Friday
Mostly sunny, with a high near 91.
Friday Night
Mostly clear, with a low around 56.
Saturday
Sunny, with a high near 87.
Saturday Night
Clear, with a low around 54.
Sunday
Sunny, with a high near 90.
Sunday Night
Mostly clear, with a low around 57.
Monday
Sunny, with a high near 91.
Monday Night
Mostly clear, with a low around 58.
Tuesday
Sunny, with a high near 90.
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ABOUT THIS FORECAST

 
Point Forecast:
Yreka CA
 41.72°N 122.62°W (Elev. 2959 ft)
4:40 pm PDT Aug 18, 2026
7pm PDT Aug 18, 2026-6pm PDT Aug 25, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database